2239830 has 48 divisors (see below), whose sum is σ = 5975424. Its totient is φ = 581760.

The previous prime is 2239807. The next prime is 2239847. The reversal of 2239830 is 389322.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2239794 and 2239803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3387 + ... + 3993.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

2^2239830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2239830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2987712).

2239830 is an abundant number, since it is smaller than the sum of its proper divisors (3735594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2239830 is a wasteful number, since it uses less digits than its factorization.

2239830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2239830 is about 1496.6061606181. The cubic root of 2239830 is about 130.8393423162.

Adding to 2239830 its product of nonzero digits (2592), we get a palindrome (2242422).

The spelling of 2239830 in words is "two million, two hundred thirty-nine thousand, eight hundred thirty".